11 REVIEW: NERVE TISSUE

Which neuron structure is primarily responsible for receiving incoming signals from other neurons?

• Axon

• Cell body

• Dendrites

• Peripheral process

What part of the neuron is typically involved in sending signals to other neurons or muscles?

• Receptive endings

• Dendrites

• Cell body

• Axon

Identify the neuron component that integrates signals from other neurons.

• Axon

• Peripheral process

• Dendrites

• Cell body

What is the synaptic cleft?

• The gap between two neurons where neurotransmitters are released.

• The area within the neuron that produces neurotransmitters.

• The protective barrier around a neuron.

• The part of the neuron that stores calcium ions.

What is another term for a nerve impulse that is transmitted by axons?

• Synaptic signal

• Neural transmitter

• Action potential

• Axonal response

What occurs at the axon terminals of a neuron?

• It receives stimuli.

• It generates nerve impulses.

• It releases neurotransmitters.

• It exhibits voltage-gated channels.

Reflexes are considered rapid, automatic responses that always produce the same effect in response to stimuli.

• True

• False

Is the peripheral nervous system divided into afferent and efferent divisions?

• True

• False

• Only afferent

• Only efferent

In myelinated axons, are the voltage-regulated sodium channels concentrated at the nodes of Ranvier?

• True

• False

• They are evenly distributed

• They are absent

Nerve impulses are sent to slow the heart's rate of contraction. The nerve fibers sending these signals most likely belong to which division of the nervous system?

• sensory (afferent) division

• somatic nervous system

• sympathetic division

• parasympathetic division